<template>
  <div>
    <el-upload
      class="avatar-uploader"
      :action="baseImgURL+actionURL"
      :show-file-list="false"
      :on-success="handleAvatarSuccess"
      :on-error="handleAvatarError"
      :headers="header"
    >
    <!-- :before-upload="beforeAvatarUpload" -->
      <img v-if="imageUrl" :src="imageUrl" class="avatar">
      <i v-else class="el-icon-plus avatar-uploader-icon" />
    </el-upload>
  </div>
</template>

<script>
import {baseImgUploadURL} from '@/utils/constTool.js'
export default {
  props: {
    actionURL: {
      type: String,
      required: true
    }
  },
  data() {
    return {
      imageName: '',
      imageUrl: '',
      baseImgURL: baseImgUploadURL,
      header: {
        Authorization: ''
      }
    }
  },
  mounted() {
    this.header.Authorization = 'Bearer ' + this.$store.state.user.token
    console.log(this.header)
  },

  methods: {
    handleAvatarSuccess(res, file) {
      this.imageUrl = URL.createObjectURL(file.raw)
      this.imageName = res.data
      this.$message.success('图片上传成功！')
      // 在此上传成功之后将imageurl丢出去到父组件
      this.$emit('returnUrl', this.imageName)
    },
    beforeAvatarUpload(file) {
      const isJPG = file.type === 'image/jpeg'
      const isLt2M = file.size / 1024 / 1024 < 2

      if (!isJPG) {
        this.$message.error('上传头像图片只能是 JPG 格式!')
      }
      if (!isLt2M) {
        this.$message.error('上传头像图片大小不能超过 2MB!')
      }
      return isJPG && isLt2M
    },
    handleAvatarError(res, file) {
      this.$message.error('上传error')
      // console.log(file)
      // console.log(res)
      // this.$emit("returnUrl",file.name)
    }
  }
}
</script>

<style>
.avatar-uploader .el-upload {
  border: 1px dashed #d9d9d9;
  border-radius: 6px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}
.avatar-uploader .el-upload:hover {
  border-color: #409eff;
}
.avatar-uploader-icon {
  font-size: 28px;
  color: #8c939d;
  width: 178px;
  height: 178px;
  line-height: 178px;
  text-align: center;
}
.avatar {
  width: 178px;
  height: 178px;
  display: block;
}
</style>
